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If y = tan^(-1) [(sqrt(1+sinx) + sqrt(1-...

If `y = tan^(-1) [(sqrt(1+sinx) + sqrt(1-sinx ))/(sqrt(1+sinx)-sqrt(1-sin x))], 0 lt xlt pi/2` then dy/dx =

A

(1/2)

B

(-1/2)

C

x/2

D

(-x/2)

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The correct Answer is:
A
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